init

src/models/database.py

@@ -1,9 +1,9 @@
 # models/database.py
-from sqlalchemy import Column, Integer, String, Text, DateTime, JSON, LargeBinary, Boolean, Float, ForeignKey, UniqueConstraint
+from sqlalchemy import Column, Integer, String, Text, DateTime, Date, JSON, LargeBinary, Boolean, Float, ForeignKey, UniqueConstraint
 from sqlalchemy.ext.declarative import declarative_base
 from sqlalchemy.sql import func
 from sqlalchemy.orm import relationship
-from datetime import datetime
+from datetime import datetime, date
 
 Base = declarative_base()
 
@@ -536,6 +536,47 @@ class ProductMaterial(Base):
         return f"<ProductMaterial(finished_product_id={self.finished_product_id}, material_product_id={self.material_product_id})>"
 
 
+class MaterialPriceHistory(Base):
+    """物料价格历史表"""
+    __tablename__ = "material_price_history"
+    
+    id = Column(Integer, primary_key=True, index=True)
+    product_id = Column(Integer, ForeignKey("products.id"), nullable=False, index=True)
+    price = Column(Float, nullable=False)
+    effective_date = Column(DateTime, default=func.now(), index=True)
+    supplier_id = Column(Integer, ForeignKey("suppliers.id"), nullable=True, index=True)
+    remark = Column(Text, nullable=True)
+    created_at = Column(DateTime, default=func.now())
+    
+    product = relationship("Product", backref="price_history")
+    supplier = relationship("Supplier", backref="price_history")
+    
+    def __repr__(self):
+        return f"<MaterialPriceHistory(product_id={self.product_id}, price={self.price}, date={self.effective_date})>"
+
+
+class MaterialSupplier(Base):
+    """物料供应商关联表"""
+    __tablename__ = "material_suppliers"
+    
+    id = Column(Integer, primary_key=True, index=True)
+    product_id = Column(Integer, ForeignKey("products.id"), nullable=False, index=True)
+    supplier_id = Column(Integer, ForeignKey("suppliers.id"), nullable=False, index=True)
+    is_primary = Column(Boolean, default=False)
+    contact_person = Column(String(100), nullable=True)
+    contact_phone = Column(String(50), nullable=True)
+    lead_time = Column(Integer, nullable=True)  # 交货周期（天）
+    min_order_quantity = Column(Integer, nullable=True)
+    created_at = Column(DateTime, default=func.now())
+    updated_at = Column(DateTime, default=func.now(), onupdate=func.now())
+    
+    product = relationship("Product", backref="suppliers")
+    supplier = relationship("Supplier", backref="materials")
+    
+    def __repr__(self):
+        return f"<MaterialSupplier(product_id={self.product_id}, supplier_id={self.supplier_id}, primary={self.is_primary})>"
+
+
 class Supplier(Base):
     """供应商表"""
     __tablename__ = "suppliers"
@@ -663,7 +704,7 @@ class PurchaseOrder(Base):
     order_no = Column(String(50), unique=True, index=True, nullable=False)
     supplier_id = Column(Integer, ForeignKey("suppliers.id"), nullable=False, index=True)
     order_date = Column(DateTime, default=func.now())
-    expected_date = Column(DateTime, nullable=True)
+    expected_date = Column(Date, nullable=True)
     status = Column(String(20), default="draft")
     total_amount = Column(Float, default=0)
     paid_amount = Column(Float, default=0)
@@ -706,7 +747,10 @@ class SalesOrder(Base):
     order_no = Column(String(50), unique=True, index=True, nullable=False)
     customer_id = Column(Integer, ForeignKey("customers.id"), nullable=False, index=True)
     order_date = Column(DateTime, default=func.now())
-    delivery_date = Column(DateTime, nullable=True)
+    delivery_date = Column(Date, nullable=True)
+    manufacturing_date = Column(Date, nullable=True)
+    actual_delivery_date = Column(DateTime, nullable=True)
+    actual_payment_date = Column(DateTime, nullable=True)
     status = Column(String(20), default="draft")
     production_status = Column(String(20), default="not_started", index=True)
     production_no = Column(String(50), nullable=True, index=True)